Kemira is evaluating strategic alternatives, including a sale, for its businesses in titanium dioxide pigments and sodium percarbonate. The pigments business had sales last year of $310 million; percarbonate sales were $73 million.

Nalco Holding's chief operating officer, William J. Roe, is retiring to pursue personal interests. He joined Nalco in 1978 as an assistant research chemist. In a related move, a number of other Nalco executives have been promoted and . . .